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Tsuchitaru Mafic Hornfels

• Type locality: ridge at west of Tsuchikura station, Yuzawa city, Minamiuonuma county, Niigata prefecture
• Contact metamorphic rock
• Protolith: Dolerite of Tanigawadake Belt
• Metamorphism: Cretaceous (Quartz diorite)

• Metamorphic facies: Contact
• Lithofacies: Hornfels

• Distribution: ridge at west of Tsuchikura station, Yuzawa city, Minamiuonuma county, Niigata pref.

• Chihara et al. (1981) Geology of the Echigo-Yuzawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 108p. (in Japanese with English abstract 8p.)